Make-up rotary



May 12. 1925. 1,537,438

E. E-. GREVE MAKE-UP ROTARY Filed Aug. 1 1923 Patented May 12, 1925 I UNITED STATES:

PATENT OFFICE.

. ,.;EDGAR E. ennvnor BELLEVUE, IPENNSYLVANlA.

MAKE-UP ROTARY.

Application filed August 1923. Serial No. 655,018.

T 0 all whom it may concern: I

Be it known that I, EDGAR E. Gnnvn, a citizen of the United States, residing at Bellevue, in the 'county' of Allegheny and State of Pennsylvania, have invented cer- .tain new and useful Improvements in a Make-Up Rotary, of which the following is a specification.

This invention is for arotary for use in connection with earth boring tools, and con stitutes an improvement on my Patent N 0.

. provide a rotary so constructed as to lend itself to cheapness of manufacture as well as the ready replacement of such parts as may become worn. Y

The invention may be readily understood by reference to the accompanying drawings, in which:

Fig. 1 is a plan view of a rotary embodying my invention;

Fig. 2 is a section in the plane of line IIII of Fig. 1;

Fig. 3 is a detail view of a slightly modified construction.

Fig. 4 is a section on an enlarged scale on line IVIV of Fig. 2.

In the drawings, 5 designates a suitable base having a hole 6 therethrough concentrically arranged, about which is a slightly elevated portion or ring on the base, in which is an annular channel 7 in which is a replaceable channel-like race plate 8 in which are conical rollers 9.

Resting on the rollers 9 is anannular spacing block 10- into which is fitted the drive ring 11, the spacing block being secured to the drive ring by feather key 12. The drive ring 'has a top flange 13, a reduced upper part 14, a further reduced part 15 which is surrounded by spacing block or ring 10, and a still smaller lower end portion 16. I I

On the top surface of the spacing ring 10 faces.

- is a channel '10 in which is a slip ring '1 7, and surrounding the reduced upper part of the drive ring is a vertical wear ring 18.

Resting on the spacing ring and confined between this ring and the top flange 13 1s the gear ring 19 having teeth 20 for engaging the drivingipinion 21 on shaft 22.

On the lower end of the drive ring is a re movable thrust ring which extends under the edge of base 5 and holds the drive ring against vertical movement upwardly. The outside of the lowerpart of the drive ring may bear against the walls of the hole 6 in the base through which thisportion of the drive ring extends.

Interposed between the spacing ring 10 i and the shoulder ll on drive ring 11 are shims 23. In the outside of ring 10 are a plurality of recesses 24 into which a looking pin A may be projected to hold the ring 10, and consequently the drive ring 11, against rotation. I I I Slidably carried inthe gear ring is a ra dially re'ciprocable locking pin 25 which may be moved into and out of engIagement' with notch 25 in flange 13 oft ring.

c drive ing recesses in the flange and gear ring to connect the drive'ring and gear rin this plug being entirely removed when on y the gear ring is to be rotated;

In the gear ring is a groove 26 which receives projection 11* on the block 10, to

mud and water. The ring or block 10, in

By manipulation of this pin, the v i drive ring may be driven with the gear ring,

be driven alone, det protect the bearing against the entrance of I turn, has an annular flange or skirt'27 which protects the lower bearing against the entrance of dirt.

In the drive ring is a reservoir 28-which may be filled with oil through plug 29, and

which .may be drained by removal of plug 30 at the bottom of drain passage 31. The

reservoir has anvoutlet over vertical wear ring or bearing 18. Inserted at each side of the bearing 18 in the gear ring and in the drive ring are small vertical 'felt strips 32 for aiding in lubricating the bearing Sur- Oil from reservoir 28 draining from the keyway 36 is provided in the wall thereof.v

hearing 18, enters channel 10, lubricating the bearing for the gear ring contained the keyway to hold the spider against rela tive rotation. The top of the spider is bev- 'eled, so that its. innermost portion is lower than its outermostportion.

This greatly facilitates the insertion of slips or the drive bushing in the central opening in the spider.

This central opening is tapered anda Removably fitted in this spider is the drive bushing 37 having a key 3'? .for cooperation with the key slot. The top of the key termi- .nates' below the top of the bushing, leaving a'shoulder at 38. In the drive bushing I is a slidable pin 39v tangentially" disposed with relation to the drive bushing, this pin being adapted to be projected over shoulder 38 so as to normally hold the drive bushing against vertical movement. In the gear ring is atong post receiving socket 40 and in socket 41. a The separate spacing ring and the flanged drive ring confining the gear ring provide 'a construction which lends itself to relatively' cheap manufacture and c'omparatively light weights, and provides a structure which may be readily taken apart and set up for storage, transportation and re- A placement and repair of parts.

j I claim as my invention:

1. A rotary comprising a base, a drive ring having an integral flanged upper end, a separate removable "sp'acing ring surrounding the driving ring intermediate'the ends thereof and connected therewith, a gear ring rotatabiy carried on said spacing ring and confined between said spacing ring and the top flange of the drive-ring, and bearings on thebase rotatably supporting said spacing ring. 1

2. A rotary comprising a base, a drive ring having an integral flanged upper end, a'separate removable spacing ring surroundmg the driving ring intermediate-the ends thereof and connected therewith, a gear ring'rotatably carried on said spacing ring and confined between said spacing ring and the top flan-ge'of the drive ring, hearings on the base rotatably supportingvsaid spacing ring, and cooperating means on'the gear ,ring and flange for releasablyconnecting thedrive ring is a similar the gear ring and drive ring in driving re: lation.

3. A.rotary comprising a base, a drive ring having an integral flanged upper end and a depending body portion projecting through the base, a separate removable spacing ring surrounding the driving ring intermediate the ends thereof and connected therewith, a gear ring rotatably carried on said spacing ring and confined between said spacing ring and the'top flange of the drive ring, an adjustable removable thrust ring on the lower end of the drive ring below the base for holding the drive ring against upward movem'ent, and hearings on the base rotatably supporting said spacing ring, said gear ring havinga laterally extending part whose surface is flush with the top of the drive ring. 41A rotary comprising a base, a drive ring having an integral flanged upper end, a separate removable spacing ring surrounding the driving ring intermediate the ends thereof connected therewith and vertically s v adjustable with respect thereto, a gear ring rotatably carried'on said spacing ring and confined between said spacing ri; and the top flange of the drive ring, hearings on the base rotatably supporting said spacing ring,

said gear ring having a laterally extending part'whose surface is flush with the top of v the drive ring, andcooperating means on this laterally extending portion of the gear ring and drive ring flange for releasably connecting the gear ring and drive ring.

v 5. The combination with arotary having a drive ring and a gear. ring, said drive ringhaving 'acentral opening therein, of a spider received in said central opening, a drive bushing removably received in the spider, and locking means in the top pdrtion .ofnthe spider for detachably securing the drive bushing. in place and operable frame the top of the spider.

6. A rotary including a base, a'drivef ring rotatably carried above the base, a gear ring rotatably carried "aboutthe drive ring,

a vertical bearing intermediate the gearring and drive ring, an oil reservoir on the drive ring, and inserted felt strips for conveying lubricants from the reservoir to different parts of the verticalbearing.

7. A rotary including a base,a spacing ring on the base-having upper and lowei' bearing surfaces, bearings interposed between 'the base and the lower bearing sur face, a bearing memberin the upper hea ing surface, a geaf ring on said bearing sun face, and a drive-ring inserted in the gear ring and spacing ring and slidably connected with the latter, said drive ring hav inga flange overhanging a portion of the gear ring, and an adjustable thrust ring on,

the lower, end of the drive ring through which all vertical play may .be taken up.-

8. A rotary having a drive-rin' and a from the reservoir to said first mentioned gear ring rotatably supported on a ase and bearing, said passage bein near the outer 10 rotatable relatively to each other, means for part of said lubricating c amber whereby locking them against relative movement, a centrifugal force will act to keep the oil supbearin in which said relat ve movement is gly over the feed passage, and an overflow effecte a bearing in the base, a lubricant rom the first bearmg to the second. reservoir in the drive rin and a lubricat- In testimony whereof I aifix my signature. ing feed passage in the rive ring leading EDGAR E. GREVE. 

